Sean Hayes
Brain (voice)

Suzy Eddie Izzard
Dr. Schadenfreude (voice)

Jay Leno
King Malbert (voice)

Jennifer Coolidge
Jaclyn / Heidi (voice)

Molly Shannon
Eva (voice)

James Lipton
Himself

Christian Slater
Dr. Schadenfreude's Igor (voice)

Arsenio Hall
Carl Cristall (voice)

Jess Harnell
Announcer / Royal Guard #2 (voice)
Zoë Bright
Blind Woman / Killiseum Fan #1 (voice)